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From caaa7def76801cbe9937602603f6b471f776e6f6 Mon Sep 17 00:00:00 2001
From: The-going <48602507+The-going@users.noreply.github.com>
Date: Sat, 16 Apr 2022 11:19:05 +0300
Subject: [PATCH] nvmem: sunxi_sid: add sunxi_get_soc_chipid, sunxi_get_serial
---
drivers/nvmem/sunxi_sid.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
index 37a6abb0e..c81fac63d 100644
--- a/drivers/nvmem/sunxi_sid.c
+++ b/drivers/nvmem/sunxi_sid.c
@@ -37,6 +37,25 @@ struct sunxi_sid {
u32 value_offset;
};
+static unsigned int sunxi_soc_chipid[4];
+static unsigned int sunxi_serial[4];
+
+int sunxi_get_soc_chipid(unsigned char *chipid)
+{
+ memcpy(chipid, sunxi_soc_chipid, 16);
+
+ return 0;
+}
+EXPORT_SYMBOL(sunxi_get_soc_chipid);
+
+int sunxi_get_serial(unsigned char *serial)
+{
+ memcpy(serial, sunxi_serial, 16);
+
+ return 0;
+}
+EXPORT_SYMBOL(sunxi_get_serial);
+
static int sunxi_sid_read(void *context, unsigned int offset,
void *val, size_t bytes)
{
@@ -167,6 +186,15 @@ static int sunxi_sid_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, nvmem);
+ nvmem_cfg->reg_read(sid, 0, &sunxi_soc_chipid[0], sizeof(int));
+ nvmem_cfg->reg_read(sid, 4, &sunxi_soc_chipid[1], sizeof(int));
+ nvmem_cfg->reg_read(sid, 8, &sunxi_soc_chipid[2], sizeof(int));
+ nvmem_cfg->reg_read(sid, 12, &sunxi_soc_chipid[3], sizeof(int));
+
+ sunxi_serial[0] = sunxi_soc_chipid[3];
+ sunxi_serial[1] = sunxi_soc_chipid[2];
+ sunxi_serial[2] = (sunxi_soc_chipid[1] >> 16) & 0x0ffff;
+
return 0;
}
--
2.34.1
|